User interface for a trim control system on a marine vessel



FIG. 1 is a perspective view of a first example of a user interface for a trim control system on a marine vessel;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is a right side view thereof; and,

FIG. 7 is a left side view thereof.

The broken lines represent portions of the user interface that are shown for purposes of illustrating environment and form no part of the claimed design. 

CLAIM The ornamental design for a user interface for a trim control system on a marine vessel, as shown and described. 